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Finding the Fourth Proportional to 72,386.84, 108,575.12 and 22,465.74

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Solution

The fourth proportional to 72,386.84, 108,575.12 and 22,465.74 is: 33,697.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,386.84 : 108,575.12 = 22,465.74 : x
  2. Step 2: Convert to fraction form
    72,386.84/108,575.12 = 22,465.74/x
  3. Step 3: Cross multiply
    72,386.84x = 108,575.12 × 22,465.74
  4. Step 4: Simplify right side
    72,386.84x = 2,439,220,416.39
  5. Step 5: Solve for x
    x = 2,439,220,416.39/72,386.84
  6. Step 6: Final answer
    x = 33,697.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.